Replace Leer Skirt?

Someone tried to break into my cap at the boat ramp today, leer 100xr. They pried at the corner and broke the skirt piece that goes over the tailgate. Hilariously enough, they didn’t even manage to get into the bed. Likely got spooked off by someone.
It looks like this piece is fiberglass where it attaches to the rear window, is this something that I could replace or needs to be taken to a shop?

 

Looking for the same piece. Where u able to find it?

 

I was, got it installed at a local dealer for around $250 if I remember correctly.